User folder in "Deleted Users" is greyed out
There's a "Deleted Users" folder, and inside it is a greyed out folder. I've tried deleting it with Clean My Mac etc. and it fails. I've tried dragging it to the trash (using an admin account), but then it starts listing off files that it says are "needed by mac os". How do I delete this old user file?
MacBook Pro 16", macOS 10.15